:root {
  --colour-navy: #00042a;
  --colour-ink: #1d1d1f;
  --colour-slate: #6e6e73;
  --colour-smoke: #86868b;
  --colour-snow: #f5f5f7;
  --colour-white: #ffffff;

  --colour-purple-deep: #510277;
  --colour-purple-mid: #8c00b4;
  --colour-purple-core: #b400c8;
  --colour-purple-bright: #c800dd;
  --gradient-brand: linear-gradient(135deg, #510277 0%, #8c00b4 35%, #b400c8 65%, #c800dd 100%);

  --colour-success: #1e8e3e;
  --colour-warning: #b5750a;
  --colour-danger: #c5221f;

  --font-display: "Playfair Display", Georgia, serif;
  --font-body: "DM Sans", -apple-system, BlinkMacSystemFont, sans-serif;

  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-pill: 980px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--colour-ink);
  background: var(--colour-snow);
  line-height: 1.6;
}

.portal-header {
  background: var(--colour-navy);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.portal-header img {
  height: 32px;
  display: block;
}

.portal-header .wordmark {
  color: var(--colour-white);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
}

.portal-shell {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.portal-sidebar {
  background: var(--colour-navy);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  row-gap: 8px;
  gap: 16px;
  padding: 16px 20px;
}

.portal-sidebar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.portal-sidebar-brand img {
  height: 32px;
  display: block;
}

.portal-sidebar-brand .wordmark {
  color: var(--colour-white);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
}

.portal-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  flex: 1 1 100%;
  order: 3;
}

.portal-nav-link {
  color: rgba(255, 255, 255, 0.75);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
}

.portal-nav-link:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--colour-white);
}

.portal-nav-link.active {
  background: rgba(255, 255, 255, 0.14);
  color: var(--colour-white);
}

.portal-sidebar-footer {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  order: 2;
  margin-left: auto;
}

.portal-account-name {
  color: rgba(255, 255, 255, 0.85);
  font-weight: 500;
}

.portal-logout-link {
  background: none;
  border: none;
  padding: 0;
  font-family: var(--font-body);
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
  text-decoration: none;
  cursor: pointer;
}

.portal-content {
  flex: 1;
  padding: 20px;
}

.portal-content-inner {
  max-width: 760px;
  margin: 0 auto;
}

.portal-content-inner--wide {
  max-width: none;
}

@media (min-width: 900px) {
  .portal-shell {
    flex-direction: row;
  }

  .portal-sidebar {
    width: 240px;
    flex-shrink: 0;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    padding: 24px 16px;
    gap: 24px;
  }

  .portal-sidebar-brand {
    padding: 0 8px;
  }

  .portal-nav {
    flex-direction: column;
    flex: none;
    order: 0;
  }

  .portal-sidebar-footer {
    margin-top: auto;
    margin-left: 0;
    flex-direction: column;
    align-items: flex-start;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    padding-top: 16px;
    order: 0;
  }

  .portal-content {
    padding: 32px 40px;
  }

  .portal-content-inner {
    margin: 0;
  }
}

.portal-main {
  max-width: 640px;
  margin: 0 auto;
  padding: 20px;
}

.portal-card {
  background: var(--colour-white);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-bottom: 16px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.06), 0 4px 16px rgba(0, 0, 0, 0.08);
}

h1.portal-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 28px;
  color: var(--colour-navy);
  margin: 0 0 16px;
}

h2.portal-section-title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 20px;
  color: var(--colour-navy);
  margin: 0 0 12px;
}

.portal-bulk-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  background: var(--colour-snow);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  margin-bottom: 8px;
}

.portal-bulk-label {
  font-size: 13px;
  color: var(--colour-slate);
  font-weight: 500;
  margin-right: 4px;
}

.btn-sm {
  padding: 6px 14px;
  font-size: 13px;
}

.portal-cancel-options-bulk {
  min-width: 220px;
}

.portal-cancel-options-bulk textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: 13px;
  padding: 8px 10px;
  border: 1.5px solid var(--colour-smoke);
  border-radius: var(--radius-sm);
  margin-bottom: 6px;
  resize: vertical;
}

.portal-lesson-checkbox {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  accent-color: var(--colour-purple-core);
  cursor: pointer;
}

.portal-lesson-row {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  border-top: 1px solid var(--colour-snow);
  padding: 16px 0;
}

.portal-lesson-row:first-child {
  border-top: none;
  padding-top: 0;
}

.portal-lesson-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--colour-snow);
  color: var(--colour-purple-core);
  display: flex;
  align-items: center;
  justify-content: center;
}

.portal-lesson-info {
  flex: 1;
  min-width: 180px;
}

.portal-lesson-date {
  color: var(--colour-slate);
  font-size: 14px;
}

.portal-lesson-time {
  font-weight: 700;
  font-size: 16px;
  color: var(--colour-navy);
}

.portal-lesson-caption {
  color: var(--colour-slate);
  font-size: 13px;
  margin-top: 2px;
}

.portal-lesson-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.btn-complete,
.btn-cancel {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 14px;
  border-radius: var(--radius-pill);
  padding: 10px 18px;
  border: none;
  cursor: pointer;
  list-style: none;
}

.btn-complete::-webkit-details-marker,
.btn-cancel::-webkit-details-marker {
  display: none;
}

.btn-complete {
  background: var(--colour-success);
  color: var(--colour-white);
}

.btn-cancel {
  background: var(--colour-snow);
  color: var(--colour-ink);
}

.portal-cancel-disclosure {
  position: relative;
}

.portal-cancel-disclosure[open] .btn-cancel {
  background: var(--colour-ink);
  color: var(--colour-white);
}

.portal-cancel-options {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: var(--colour-white);
  border-radius: var(--radius-sm);
  padding: 6px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.08), 0 8px 24px rgba(0, 0, 0, 0.1);
  min-width: 140px;
}

.btn-cancel-option {
  font-family: var(--font-body);
  font-size: 14px;
  text-align: left;
  background: none;
  border: none;
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  cursor: pointer;
}

.btn-cancel-option:hover {
  background: var(--colour-snow);
}

.portal-lesson-note {
  flex-basis: 100%;
  font-family: var(--font-body);
  font-size: 13px;
  padding: 8px 10px;
  border: 1.5px solid var(--colour-smoke);
  border-radius: var(--radius-sm);
  resize: vertical;
}

.portal-empty {
  color: var(--colour-slate);
  font-size: 14px;
}

.btn-primary,
.btn-secondary,
.btn-accent {
  display: inline-block;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 14px;
  border-radius: var(--radius-pill);
  padding: 10px 22px;
  border: none;
  cursor: pointer;
  text-decoration: none;
  text-align: center;
}

.btn-primary {
  background: var(--colour-navy);
  color: var(--colour-white);
}

.btn-secondary {
  background: transparent;
  color: var(--colour-navy);
  border: 1.5px solid var(--colour-navy);
}

.btn-accent {
  background: var(--gradient-brand);
  color: var(--colour-white);
}

.portal-form label {
  display: block;
  font-weight: 500;
  font-size: 14px;
  margin-bottom: 6px;
}

.portal-form input[type="text"],
.portal-form input[type="email"],
.portal-form input[type="password"],
.portal-form textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: 16px;
  padding: 10px 12px;
  border: 1.5px solid var(--colour-smoke);
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
}

.portal-alert {
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  margin-bottom: 16px;
  font-size: 14px;
}

.portal-alert.success {
  background: rgba(30, 142, 62, 0.1);
  color: var(--colour-success);
}

.portal-alert.error {
  background: rgba(197, 34, 31, 0.1);
  color: var(--colour-danger);
}

.portal-alert.info {
  background: rgba(0, 4, 42, 0.06);
  color: var(--colour-navy);
}

.portal-alert.warning {
  background: rgba(181, 117, 10, 0.12);
  color: var(--colour-warning);
}

a {
  color: var(--colour-purple-core);
}

.portal-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.portal-card-header .portal-section-title,
.portal-card-header .portal-title {
  margin-bottom: 0;
}

.portal-view-all {
  font-size: 13px;
  font-weight: 500;
  color: var(--colour-purple-core);
  text-decoration: none;
  white-space: nowrap;
}

.portal-view-all:hover {
  text-decoration: underline;
}

.portal-status-tag {
  flex-shrink: 0;
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  background: var(--colour-snow);
  color: var(--colour-slate);
  text-transform: capitalize;
}

.portal-status-complete,
.portal-status-paid {
  background: rgba(30, 142, 62, 0.12);
  color: var(--colour-success);
}

.portal-status-cancelled,
.portal-status-void {
  background: rgba(0, 4, 42, 0.06);
  color: var(--colour-slate);
}

.portal-status-no_show,
.portal-status-due {
  background: rgba(181, 117, 10, 0.14);
  color: var(--colour-warning);
}

.portal-payment-row {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  border-top: 1px solid var(--colour-snow);
  padding: 14px 4px;
  margin: 0 -4px;
  border-radius: var(--radius-sm);
  color: inherit;
  text-decoration: none;
}

.portal-payment-row:first-child {
  border-top: none;
  padding-top: 0;
}

.portal-payment-row:hover {
  background: var(--colour-snow);
}

.portal-payment-info {
  flex: 1;
  min-width: 180px;
}

.portal-payment-id {
  font-weight: 700;
  font-size: 15px;
  color: var(--colour-navy);
}

.portal-payment-meta {
  font-size: 13px;
  color: var(--colour-slate);
  margin-top: 2px;
}

.portal-payment-amount {
  font-weight: 700;
  font-size: 15px;
  color: var(--colour-ink);
}

.portal-period-tabs {
  display: flex;
  gap: 4px;
  background: var(--colour-snow);
  border-radius: var(--radius-pill);
  padding: 4px;
}

.portal-period-tab {
  font-size: 13px;
  font-weight: 600;
  color: var(--colour-slate);
  text-decoration: none;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
}

.portal-period-tab.active {
  background: var(--colour-navy);
  color: var(--colour-white);
}

.portal-stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 16px;
}

.portal-stat-card {
  background: var(--colour-snow);
  border-radius: var(--radius-sm);
  padding: 18px;
  text-align: center;
}

.portal-stat-value {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 700;
  color: var(--colour-navy);
}

.portal-stat-label {
  font-size: 13px;
  color: var(--colour-slate);
  margin-top: 4px;
}

.portal-table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.portal-table {
  width: 100%;
  min-width: 480px;
  border-collapse: collapse;
  margin-bottom: 16px;
  font-size: 14px;
}

.portal-table tr {
  border-top: 1px solid var(--colour-snow);
}

.portal-table tr:first-child {
  border-top: none;
}

.portal-table td {
  padding: 10px 8px;
}

.portal-table-actions {
  text-align: right;
  width: 1%;
  white-space: nowrap;
}

.portal-remove-link {
  background: none;
  border: none;
  padding: 0;
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--colour-danger);
  cursor: pointer;
  text-decoration: underline;
}

.portal-inline-form {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
}

.portal-inline-form input {
  font-family: var(--font-body);
  font-size: 14px;
  padding: 8px 10px;
  border: 1.5px solid var(--colour-smoke);
  border-radius: var(--radius-sm);
  flex: 1;
  min-width: 120px;
}

.btn-primary:disabled {
  background: var(--colour-smoke);
  cursor: not-allowed;
}